Hauv lub neej txhua hnub, cov neeg feem coob ntseeg tias cov hlau tsis muaj hlau tsis sib nqus thiab siv hlau nplaum los txheeb xyuas nws. Txawm li cas los xij, hom no tsis yog lub suab nrov. Firstly, zinc alloys thiab tooj liab alloys tuaj yeem ua piv txwv pom cov tsos thiab tsis muaj kev ntseeg siab tias lawv yog tus hlau tsis muaj zog. Txawm tias feem ntau yog siv stainless hlau qib, 304, tuaj yeem ua pov thawj sib txawv ntawm cov magnetism tom qab ua haujlwm txias. Yog li ntawd, cia siab ib leeg ntawm cov hlau nplaum los txiav txim siab qhov tseeb ntawm cov hlau stainless tsis ntseeg tau.
Yog li, dab tsi ua rau lub magnetism hauv stainless hlau?
Raws li kev kawm cov ntaub ntawv physics, lub magnetism ntawm cov hlau yog muab tau los ntawm cov hluav taws xob kiv. Kev tig hluav taws xob yog cov khoom siv hluav taws xob ntau uas tuaj yeem yog "nce" lossis "cia." Hauv cov ntaub ntawv ferromagnetic, tshuab hluav taws xob cia li ua kom haum rau tib txoj kev, thaum nyob hauv cov ntaub ntawv tiv thaiv cov qauv, thiab cov neeg nyob sib ze tau rov qab lossis antiparallel spins. Txawm li cas los xij, rau cov hluav taws xob hauv daim duab hluav taws xob, lawv yuav tsum txhua tus kiv hauv tib txoj kev coj ua hauv txhua daim duab peb sab, ua rau qhov tsis muaj cov qauv kiv.
Feem ntau, ustenitic stainless hlau (sawv cev los ntawm 304) tsis yog sib nqus tab sis yuav ua rau muaj kev sib nqus uas tsis muaj zog. Ferritic (Feem ntau 430, 409L, 439, thiab 445nf, ntawm lwm tus) thiab martensitic (sawv cev los ntawm 410) stainless hlau feem ntau sib nqus. Thaum stainless hlau qib zoo li 304 tau cais raws li tsis yog sib nqus, nws txhais tau tias lawv cov khoom sib nqus poob qis dua ib qho kev pib; Txawm li cas los xij, feem ntau ntawm cov hlau stainless me me nthuav tawm qee qib ntawm Magnetism. Ib qho ntxiv, raws li tau hais ua ntej, Austenite yog tsis muaj kev sib nqus lossis tsis muaj zog sib nqus, thaum muaj kev sib nqus thiab cov martens yog sib nqus. Kev kho mob ua kom sov lossis kev sib xyaw ua ke thaum lub sijhawm smelting tuaj yeem ua rau muaj cov qauv me me ntawm 304 stainless hlau, ua rau tsis muaj zog hlau nplaum.
Tsis tas li ntawd, cov qauv ntawm 304 stainless hlau tuaj yeem hloov martensite tom qab ua haujlwm txias, thiab cov ntaub ntawv martens ntau dua, ua rau muaj zog dua Magnetism. Txhawm rau kom paub meej cov hlau nplaum hauv 304 stainless kev kho mob kho tau tuaj yeem ua kom tau los ua kom rov qab muaj cov qauv autenite ruaj khov.
Hauv cov ntsiab lus, lub magnetism ntawm cov khoom siv tau txiav txim siab los ntawm qhov tsis tu ncua ntawm cov kev ua haujlwm ntawm molecular thiab cov txheej txheem ntawm hluav taws xob spins. Nws suav hais tias yog cov khoom ntiag tug ntawm cov khoom siv. Lub corrosion tsis kam ntawm cov khoom, ntawm qhov tod tes, yog txiav txim siab los ntawm nws cov tshuaj lom neeg muaj pes tsawg leeg thiab yog ywj siab ntawm nws cov hlauetism.
Peb cia siab tias qhov kev piav qhia luv luv tau pab tau. Yog tias koj muaj lwm lo lus nug txog cov hlau tsis xeb, thov koj sab laj rau sab laj chemical cov ntaub ntawv pabcuam neeg siv khoom lossis sau ib cov lus, thiab peb yuav zoo siab pab koj.
Lub sijhawm Post: Nov-15-2023